After eventually scraping past, she then let her door swing out, hitting the car again.

She wasn't injured, but left minor scratches on both vehicles.

Neither of her children, Sean Preston, 22 months, and Jayden, 11 months were in her black convertible at the time of the incident.

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Meanwhile, Britney, whose interview with OK! magazine last month made headlines after she reportedly vomited on a designer dress, shows no sign of curbing her erratic behaviour.

After posing for the cover of Allure magazine, she failed to show up on several occasions for a sit down interview with the publication, it has been revealed.

The Editor in Chief Linda Wells writes: "I thought we could present the profile as her comeback. Britney showed up for Allure's cover shoot on time and ready to work.

"She was entirely unselfconscious: She took off her wig and then stripped down to the waist, for no apparent reason, before sitting for hair and makeup."

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She notes that the star was "agreeable and co-operative," but "that was the last we saw of her ... she missed four appointments for an interview."

She added: "Britney has long lost her role-model status ... Spears still commands our attention, perhaps even more so now than before her life imploded."

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The article now focuses on "the nature of celebrity."

Spears' family continues to be concerned for the mother of two - and for her sons.

According to one family friend, Spears "won't listen to anybody."

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The source told People magazine: "[Her family] is frustrated with the situation – and worried about the children."

In a welcomed move, Spears who has been without a manager since firing Larry Rudolph just after leaving rehab earlier this year, is finally looking for guidance to help resuscitate her career - and damaged profile.

TMZ reports she has taken on Jeff Kwatinez, who once managed American pop singer Kelly Clarkson.